The same thing happened to me. My Dexa scans showed osteopenia, but I got a L3 compression fracture while pulling myself out of bed after a total knee replacement. My primary care physician said that the fact that I got the compression fracture indicates that I should be treated as though I have osteoporosis. I think for both of us the proof is in the fact that we got the compression fractures. I believe that the fractures override the dexa scan results.